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B. SK-ELLY! Burglar Alarm.

Patented Nov. 19,. 1867,

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D. SKELLY, OF LOCKPORT, NEW YORK. Letters Patent No. 71,073, datedNovember 19, 1867.

mrnovro BURGLAR-ALARM.

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TO ALL WHOM'IT MAY CONCERN:

Be it known that I D. B. SKELLY, oi' Lockport, in the county of Niagara,and State of New York, have invented anew and improved Burglar-Alarm;and I do hereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art to makeand use the same, reference being bad to the accompanying drawings,forming part of this specification.

' This invention relates to a new and improved device for giving thealarm and striking alight incase a burglar enters a dwelling-house orother building at night; and the invention consists in an arrangement ofsprings, which, when set, are held in position by a small wire orthread, but, when the wire or thread is broken or loosened, the springsare liberated, which liberation or recoil gives the alarm, by ringingabell and discharging a pistol, and at the same tinic ignites a matchand lights a lamp, as will be hereinafter described. Figure 1 representsthe machine as set, ready to give the alarm, it being a perspective viewof the same. Figure 2 is side view of the machine after it has beensprung, showing the lamp burning, andan explode cap on the nipple of thepistol.

Similar letters of reference indicate corresponding parts.

A represents the bed-plate, to which the parts of the machinearc'attached. B is the bell. C is the bellspring. D is the lamp. E is aplate which is attached to the bell-spring, to one end of which plate isattached a pin, a, by which the bell-spring is held down when themachine is set. F is a hook, on the edge of the bed plate, which hooksover the pin a. G is a spring, the recoil of which throws the hook E edthe pin a, and libcrates the bell-spring. H is another spring, whichengages with G when the machine is set, upon the end of which there is apin, e, whichpasses through a slot in the end of the spring G. J is aliberating-plate or trigger, which has a hole in one end which sets overthe pin e. This end of the plate J is bent down a little, and laps on tothe spring Gr, after passing through the slot, as seen in fig. 1. It isthis bent end of the trigger which holds down the spring G, and keepsthe machine set or ready for action. The wire or threadt is attached tothe other end of the trigger, as seen. --K is a guide-post for the plateE, attached to the lamp or to the bedplate. L is a stud on the lamp,with an orifice through its upper end in which to place a match. Thematch is held by a small set-screw,f, in the top of the stud. mrepresents a pistol. N is the hammer, the back end of which forms aspring, as seen in fig. 1. The hammer is held up by a stud, O, with anarm, P,.theend of which arm turns up like a hook, 1?, as seen in thedrawing. On the bell-spring there is a hook, 9', which catches into thehook 1?, when the bell-spring flies back or recoils, which throws thestud 0 from under the hammer, which falls and explodes the cap anddischarges the pistol.

When the machine is set, as represented in fig. 1, it is held inposition by the trigger J, as before stated, and the trigger is kept inplace by the wire or thread i, which is kept tightly drawn all the time,and passed from one room to another, over chairs and under doors, aswell as into chambers, the extreme end being fastened wherever desired.The machine may be placed in the bedroom, or wherever it may he wanted.

When the machine is set and the wire thus prepared, it will be seenthat, should the wire be broken or in any way loosened, the spring Gwould be liberated, and the alarm would be given by the ringing of thebell and the discharge of the pistol, while the .match S, which issecured in the stud L, would be ignited by the plate E, which isroughened, or has sandpaper on its side, and is drawn in contact withit. The end of the match 'is near or in contact with the wick of thelamp, so that the lamp is lighted as the alarm is given.

7 w Having thus described my invention, I claim as new, and desire tosecure by Letters Patent* 1. The combination of the bell-spring C, theplate'E, the book 7', and the pin a, the springs G and H, the hook F,and the trigger J, arranged and operating substantially'as shown anddescribed for the purposes set forth 2. I claim the combination of thestud O, the arm 1?, the hook P, and the hammer N, arranged substantiallyas described for the purpose specified. 3. I claim the stud L, incombination with the lamp D and plate E, substantially as andfor thepurpose i set forth. f

4. I claim the combination of the springs G and-H and the trigger J, asand for the purposes described. The above specificationoi' my inventionsigned by me this 26th day of September, 1867.

D. B. SKELLY.

* 1 Witnesses: e Josnrn PINNELL,

WiLLIAM B. Ln VALLEY.

